An air separation module includes a canister having an inlet end and an outlet end arranged along a canister axis, a separator supported within the canister and arranged to separate a compressed air flow received at the air separation module into an oxygen-depleted air flow fraction and an oxygen-enriched air flow fraction, and an inlet cap. The inlet cap is seated about the inlet end of the canister, contains therein a portion of the separator, and has an oxygen-enriched air outlet port fluidly separated from the outlet end of the canister by the separator for diverting the oxygen-enriched air flow fraction to the external environment. Nitrogen generation systems and methods of making air separation modules are also described.

An air separation module includes canister, a separator, and a band. The canister has an inlet end, an axially opposite outlet end, and an oxygen-enriched air flow fraction outlet port between the inlet end and the outlet end of the canister. The separator is supported within the canister and is arranged to separate compressed air flow into an oxygen-depleted air flow fraction and an oxygen-enriched air flow, provide the oxygen-depleted air flow fraction to the outlet end of the canister, and divert the oxygen-enriched air flow fraction to the oxygen-enriched air flow outlet port. The band is fixed to the canister and extends about the separator at a location axially between the oxygen-enriched air flow fraction outlet port and the inlet end of the canister to support the air separation module. Nitrogen generation systems and methods of making air separation modules are also described.

Systems for atmospheric water generation are disclosed. An illustrative system may comprise an atmospheric water generator, and a wireless communications device communicatively coupled to the atmospheric water generator. The wireless communications device may be configured to receive and display status information associated with the atmospheric water generator, and to provide operating instructions to the atmospheric water generator. The wireless communications device may be further configured to display an outside temperature, an outdoor humidity, a water level, an indoor temperature, an indoor humidity, and a dew point. The wireless communications device may be further configured to receive control instructions, and wherein the wireless communications device is further configured to communicate the control instructions to the atmospheric water generator.

A scent device comprises a container defining a volume and configured to hold a fill material, which may include one or more chemical compounds, natural formulations, or both configured to absorb odor and/or moisture, and/or emit a scent. The scent device includes a vented cap reversibly coupled to the container via a connection mechanism, and a breathable insert sandwiched between the container and the cap. The breathable insert may comprise a non-woven fabric supported along its perimeter by a structural mount. Methods of manufacturing the scent device involve cutting a mount from a support material, attaching a breathable material to the mount to form a breathable insert, depositing a scent-controlling material within a container, and sandwiching the breathable insert between the container and a cap upon coupling the cap with the container.

A refrigerator comprises a refrigerator body, an air-conditioning membrane assembly and an air pump assembly. The refrigerator body defines a storage space and a compressor chamber therein, a storage container is arranged in the storage space, and a freshness-keeping space is defined inside the storage container. The air-conditioning membrane assembly is provided with at least one air-conditioning membrane and an oxygen-rich gas collection chamber and configured to allow more oxygen than nitrogen in airflow in a surrounding space of the air-conditioning membrane assembly to pass through the air-conditioning membrane and enter the oxygen-rich gas collection chamber. An air pump pumps gas in the oxygen-rich gas collection chamber to the outside of the freshness-keeping space, such that a ratio of the content of nitrogen in the freshness-keeping space to the content of oxygen in the freshness-keeping space is greater than 78/21.

This invention describes a method and apparatus for the capture, storage and release of carbon dioxide for use in the horticulture industry, the method including reduction of a transition metal oxide to form a transition metal and carbon dioxide; carburization or partial carburization of the transition metal to form metal carbide; carbonation of an alkaline metal oxide or alkaline earth metal oxide to form an alkaline metal carbonate or alkaline earth metal carbonate; contacting the metal carbide with air to produce a transition metal oxide and carbon dioxide; and calcining the alkaline metal carbonate or alkaline earth metal carbonate to form carbon dioxide and alkaline metal oxide or alkaline earth metal oxide. Also described is a sorbent material for use in the method and apparatus of the invention.

Embodiments of the present disclosure describe methods of removing one or more compounds from a fluid comprising contacting a metal-organic framework (MOF) composition having a square-octahedral topology with a fluid containing one or more of CH.sub.4 and O.sub.2, sorbing one or more of CH.sub.4 and O.sub.2 with the MOF composition, and storing one or more of the CH.sub.4 and O.sub.2 with the MOF composition.

Systems and methods for natural gas storage and transport with a mobile unit, the method including charging a mobile natural gas storage and transport unit with natural gas via adsorption of the natural gas on adsorbent materials disposed within the natural gas storage and transport unit; transporting the natural gas storage and transport unit a distance to proximate a natural gas power generation unit; and discharging the natural gas over time via desorption of the natural gas from the adsorbent materials to power the natural gas power generation unit.

A compressed air drying system is provided for removing moisture from compressed air. The drying system is a modular system with multiple drying units arranged parallel to each other. The drying units cool the compressed air and remove moisture from the compressed air. In order to limit the number of drying units used during low demand periods, a separate air valve is included for each drying unit to control the flow of compressed air through the respective drying units.

Systems for atmospheric water generation are disclosed. An illustrative system may comprise a first subsystem and a second subsystem. The first subsystem may comprise a first housing, a cooling element, an air intake filter abutting the cooling element, a plurality of ultraviolet LEDs disposed over the air intake filter, a water collector disposed below the cooling element, and a water storage tank coupled to the water collector. The second subsystem may be coupled to the first subsystem by a water tube. The second subsystem may comprise a second housing, a pathogen neutralizing module, a water storage bladder coupled to pathogen neutralizing module, a compressor and platform supporting the water storage bladder, and a tap coupled to the water storage bladder.